Siren call.

Suicide Squad director David Ayer has signed on to direct Gotham City Sirens, the upcoming DC movie based on the comic series of the same name.

Ayer will direct and produce the movie, which will see him working once again with Harley Quinn actress Margot Robbie, according to The Hollywood Reporter.

In addition to again taking on the role of Harley Quinn, Robbie is also an executive producer on the project. Geoff Jons and Jon Berg are also on board as producers.

The comic series focused on Gotham City's female villains, including Catwoman, the aforementioned Harley Quinn, and Poison Ivy. Which female villains make the film's roster is just one of many details, including a release date, still up in the air.

Suicide Squad, in which Robbie introduced her take on Harley Quinn, didn't fare well critically, but audiences enjoyed it to the tune of $745 million USD. With that sort of earning power, a sequel to the movie seems like a foregone conclusion at this point. THR says that while the Harley Quinn/Gotham City Sirens movie is happening first, Warner Bros. is also looking at a more straightforward Suicide Squad sequel along with a potential spinoff film for Deadshot (Will Smith).

A previous version of this story listed the director as David Ayers instead of David Ayer. The error has been corrected.

Seth Macy is IGN's weekend web producer and just wants to be your friend. Follow him on Twitter @sethmacy, or subscribe to Seth Macy's YouTube channel.